12D inner cooling twist drills for general machining

Note:accept non-standard customization from D3 to D20.

Bartu Headquartered in Zhuzhou, China, renowned as the "World Capital of Cemented Carbide"—a global core hub for the cemented carbide industry and Asia's largest R&D and manufacturing base—we are a technology-driven industrial and trading enterprise dedicated to the R&D, production, and sales of high-precision cutting tools. Leveraging Zhuzhou's unique geographical advantages as a world-class cemented carbide industrial base and its abundant supply chain resources, we are committed to providing the global machining industry with High-Quality, High-Stability, and Cost-Effective cutting tooling products, along with customized machining solutions.

Our company operates under a business model of "In-house Design + Core Process Control + In-depth Supply Chain Management." We boast an experienced technical team capable of precisely optimizing tool geometries for various difficult-to-machine materials, such as high-temperature alloys, titanium alloys, and mold steel. On the manufacturing front, we have established deep strategic partnerships with multiple ISO9001-certified modern factories. By co-developing dedicated production lines and stationing our own quality control teams on-site, we implement "Full-Process Factory-Level Quality Control"—from powder batching, pressing, and sintering to precision grinding and coating. Focused on the production of high-precision, high-quality inserts, our products achieve micron-level accuracy. With quality fully comparable to Japanese and Korean brands, we ensure that every product delivered possesses exceptional cutting performance and a superior service life.

We have built a complete industrial chain extending from powder metallurgy to precision manufacturing. Our product portfolio covers carbide CNC inserts, solid carbide end mills, drills, tool holders, HSS tools, machine tool accessories, and precision measuring instruments. With durability, precision, and performance at the core, each product finds wide application in automotive parts manufacturing, aerospace precision machining, 3C electronics molds, general machinery processing, medical devices, energy machinery, rail transportation, and beyond. Whether it's the stable supply of standard items or the rapid prototyping of non-standard custom tools, we consistently deliver efficient and reliable solutions. We are more than just a cutting tool supplier; we are your long-term partner in enhancing machining efficiency and reducing manufacturing costs.

As an integrated industrial and trading enterprise with a team of over 200 professionals, we forge excellence with craftsmanship and win trust through dedicated service. For over seven years, relying on our superior product quality and professional, efficient service, we have successfully delivered "Intelligent Manufacturing in China" precision tools to more than 30 countries and regions worldwide, with annual export value exceeding RMB 400 million.

Moving forward, we will continue to uphold our philosophy of "Precision Craftsmanship, Service for the World." Driven by technological innovation and grounded in quality control, we are dedicated to becoming your most trusted partner in cutting tools, empowering the precision and efficiency of future industry.

We look forward to joining hands with you to create cutting value together!

Corporate Values:

Deliver Customer Profitability

Empower Employee Growth

Benefit Partners

Uphold Integrity & Innovation for Long-term Success

Our Vision:

To become the most trusted partner in the global high-precision cutting field, empowering the precision and efficiency of future industry.

We go beyond the development and supply of cutting tools. Driven by technological innovation, we are committed to transforming the industrial advantages of China's "World Capital of Cemented Carbide" into global competitiveness. Through the continuous optimization of our "High-Quality, High-Stability, and Cost-Effective" products and services, we aspire to see Bartu empowering customer development in every precision machining scenario, joining hands with the global manufacturing industry to move towards an intelligent and efficient future.